[Bug 40423] New: Firefox GLX test crashes with Mesa 7.12-devel, Gallium 0.4 on AMD JUNIPER

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=40423

           Summary: Firefox GLX test crashes with Mesa 7.12-devel, Gallium
                    0.4 on AMD JUNIPER
           Product: Mesa
           Version: unspecified
          Platform: Other
               URL: https://crash-stats.mozilla.com/report/index/4a1da9e3-
                    fef3-4ce6-be03-ce07d2110827
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: bjacob at mozilla.com


Just got this Firefox crash report:
https://crash-stats.mozilla.com/report/index/4a1da9e3-fef3-4ce6-be03-ce07d2110827

The Firefox crash itself is not relevant to Mesa/ATI, but this report also says
(look at App Notes) that the little GLX test process that Firefox runs at
startup also crashed:

App Notes 

GLXtest process failed (received signal 11):
VENDOR
  X.Org
RENDERER
  Gallium 0.4 on AMD JUNIPER
VERSION
  2.1 Mesa 7.12-devel (git-5379a70)
TFP
  TRUE

You can find the source code of this test here:
http://hg.mozilla.org/mozilla-central/file/d0700ba932b4/toolkit/xre/glxtest.cpp#l107

It's even simpler than 'glxinfo' but differs in that it uses a GLX pixmap
instead of a XWindow to back the GL context.

As the 'App Notes' say, this process crashed on signal 11 (segmentation fault)

In the crash report, by clicking the Modules tab you can get version info for
the libraries loaded in the Firefox process. For example:
   libX11.so.6.3.0
   libGL.so.1.2

Unfortunately I don't have any more information about it: no stack, no more
device information.

Note that Firefox itself is "fine", the present bug is only making the GLX test
process crash, Firefox notices that and as a result disables GL-dependent
features. But it would be nice to not have to disable these features ;-)

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